So I snagged this for 360 this week- Saw it in the electronics district in Seoul for about $35 used. Score!
Anyway- I like the setting less than I liked FO3/The East, but it's definitley a better game. Dead Rising 2 was a game that got better by making a lot of macro changes, this is a game that got better through about a zillion tiny tweaks that just make it sing.
Also, the writing is better and the quests are more diverse. The moral quandaries are weirdly more and less dynamic- When choosing a sheriff for Prim, it feels like a gut decision, a real toss up. It's not like GOOD GUY vs EVIL GUY. But the NCR/Legion divide is kind of hilarious- Nice guys stretched thin or a band of merciless raiders destroying the wasteland with their cleansing fire. There's not really a gray area there and that's kind of a bummer.
I wish the Legion had been introduced more gradually- Maybe you hook up with them and their brand of justice is revealed more slowly. Nipton is kind of a slap in the face.
Anyway, it's a really nice look at another part of the Fallout mythos, the setting is really distinct and the game just plays better.